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Title: Basic concept of organic chemistry by shani
Description: In these notes there is a brief discussion of organic chemistry
Description: In these notes there is a brief discussion of organic chemistry
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UNIVERSITY OF EDUCATION TOWNSHIP LAHORE
PRESENTATION
TOPIC: VBT IN METALLIC BONDING
SUBJECT: CHEMISTRY
PROGRAM: BS CHEMISTRY
PRESENTED BY: MUHAMMAD RAMZAN KHADIM
PRESENTED TO: Dr
...
➢ FREE ELECTRONS THEORY / ELECTRON GAS THEORY / ELECTRON POOL THEORY
➢ VALENCE BOND THEORY (VBT)
➢ MOLECULAR ORBITAL THEORY (MOT)
Here we will discuss about only Valence Bond Theory (VBT)
...
According to this theory Metallic bond is treated as Cavalent
bond in the metals
...
In this body centered cubic structure Lithium is in the center of a cube and is surrounded
by the 8 Lithium atoms
...
And In the BBC structure of Lithium metal There are only 9 electrons of 9 Lithium atoms are
available for metallic bonding This deficiency of electrons causes resonance of covalent bonds
...
There are two types of resonance of covalent bond
occurs in the lithium metals
...
This occurs in lithium metal
...
This type of resonance also occurs in the lithium metal
...
And the Neighbour
Lithium atom gains that electron and converted into Li -
...
Therefore these
delocalized electrons are available for the conduction of electricity
...
MALLEABILITY AND DUCTILITY:
Due to Uniform charge distribution when stress is applied to the metals the metal atoms change their
position with the neighbouring atoms without changing their internal environment
...
Title: Basic concept of organic chemistry by shani
Description: In these notes there is a brief discussion of organic chemistry
Description: In these notes there is a brief discussion of organic chemistry